Version history and source control are very common, highly valued elements of an IT organization's application lifecycle management (ALM).
For example, changes to an Analysis Services data model, such as new DAX measures, are typically committed to a source control repository and tools such as Visual Studio Team Services (VSTS) provide features for teams to manage and collaborate on these changes. Perhaps most importantly, these tools enable teams to view and revert back to prior versions.
Power BI Desktop files (.pbix) do not integrate with these robust systems and are not expected to in the foreseeable future. As an alternative, Microsoft recommends OneDrive for Business, given it's support for version history and its current 15 GB file size limit. Additionally, for longer term and larger scale projects, BI teams can optionally persist the core DAX...